TBS 2 greatly improves on everything TBS 1 laid the ground of, be it gameplay, be it story. Both enemy and class increase immensely in variety, and the story beats the game goes through become even more epic and tense.
Unfortunately, all the other problems from TBS 1 persist - the combat does get sluggish at times, and the lack of an attack range previewer continues to frustrate me to no end. The ending of the game, by the way, was one of the most gimmicky, badly designed and terrible experiences I've had with a game in a while. So yeah, a lot of good and bad stuff in this.